aboutsummaryrefslogtreecommitdiffstats
path: root/keystonemiddleware-moon/tools/install_venv_common.py
diff options
context:
space:
mode:
authorWuKong <rebirthmonkey@gmail.com>2015-07-01 08:54:55 +0200
committerWuKong <rebirthmonkey@gmail.com>2015-07-01 08:54:55 +0200
commit03bf0c32a0c656d4b91bebedc87a005e6d7563bb (patch)
tree7ab486ea98c8255bd28b345e9fd5b54d1b31c802 /keystonemiddleware-moon/tools/install_venv_common.py
parent53d12675bc07feb552492df2d01fcd298167c363 (diff)
migrate openstack hook to opnfv
Change-Id: I1e828dae38820fdff93966e57691b344af01140f Signed-off-by: WuKong <rebirthmonkey@gmail.com>
Diffstat (limited to 'keystonemiddleware-moon/tools/install_venv_common.py')
-rw-r--r--keystonemiddleware-moon/tools/install_venv_common.py172
1 files changed, 172 insertions, 0 deletions
diff --git a/keystonemiddleware-moon/tools/install_venv_common.py b/keystonemiddleware-moon/tools/install_venv_common.py
new file mode 100644
index 00000000..e279159a
--- /dev/null
+++ b/keystonemiddleware-moon/tools/install_venv_common.py
@@ -0,0 +1,172 @@
+# Copyright 2013 OpenStack Foundation
+# Copyright 2013 IBM Corp.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""Provides methods needed by installation script for OpenStack development
+virtual environments.
+
+Since this script is used to bootstrap a virtualenv from the system's Python
+environment, it should be kept strictly compatible with Python 2.6.
+
+Synced in from openstack-common
+"""
+
+from __future__ import print_function
+
+import optparse
+import os
+import subprocess
+import sys
+
+
+class InstallVenv(object):
+
+ def __init__(self, root, venv, requirements,
+ test_requirements, py_version,
+ project):
+ self.root = root
+ self.venv = venv
+ self.requirements = requirements
+ self.test_requirements = test_requirements
+ self.py_version = py_version
+ self.project = project
+
+ def die(self, message, *args):
+ print(message % args, file=sys.stderr)
+ sys.exit(1)
+
+ def check_python_version(self):
+ if sys.version_info < (2, 6):
+ self.die("Need Python Version >= 2.6")
+
+ def run_command_with_code(self, cmd, redirect_output=True,
+ check_exit_code=True):
+ """Runs a command in an out-of-process shell.
+
+ Returns the output of that command. Working directory is self.root.
+ """
+ if redirect_output:
+ stdout = subprocess.PIPE
+ else:
+ stdout = None
+
+ proc = subprocess.Popen(cmd, cwd=self.root, stdout=stdout)
+ output = proc.communicate()[0]
+ if check_exit_code and proc.returncode != 0:
+ self.die('Command "%s" failed.\n%s', ' '.join(cmd), output)
+ return (output, proc.returncode)
+
+ def run_command(self, cmd, redirect_output=True, check_exit_code=True):
+ return self.run_command_with_code(cmd, redirect_output,
+ check_exit_code)[0]
+
+ def get_distro(self):
+ if (os.path.exists('/etc/fedora-release') or
+ os.path.exists('/etc/redhat-release')):
+ return Fedora(
+ self.root, self.venv, self.requirements,
+ self.test_requirements, self.py_version, self.project)
+ else:
+ return Distro(
+ self.root, self.venv, self.requirements,
+ self.test_requirements, self.py_version, self.project)
+
+ def check_dependencies(self):
+ self.get_distro().install_virtualenv()
+
+ def create_virtualenv(self, no_site_packages=True):
+ """Creates the virtual environment and installs PIP.
+
+ Creates the virtual environment and installs PIP only into the
+ virtual environment.
+ """
+ if not os.path.isdir(self.venv):
+ print('Creating venv...', end=' ')
+ if no_site_packages:
+ self.run_command(['virtualenv', '-q', '--no-site-packages',
+ self.venv])
+ else:
+ self.run_command(['virtualenv', '-q', self.venv])
+ print('done.')
+ else:
+ print("venv already exists...")
+ pass
+
+ def pip_install(self, *args):
+ self.run_command(['tools/with_venv.sh',
+ 'pip', 'install', '--upgrade'] + list(args),
+ redirect_output=False)
+
+ def install_dependencies(self):
+ print('Installing dependencies with pip (this can take a while)...')
+
+ # First things first, make sure our venv has the latest pip and
+ # setuptools and pbr
+ self.pip_install('pip>=1.4')
+ self.pip_install('setuptools')
+ self.pip_install('pbr')
+
+ self.pip_install('-r', self.requirements, '-r', self.test_requirements)
+
+ def parse_args(self, argv):
+ """Parses command-line arguments."""
+ parser = optparse.OptionParser()
+ parser.add_option('-n', '--no-site-packages',
+ action='store_true',
+ help="Do not inherit packages from global Python "
+ "install.")
+ return parser.parse_args(argv[1:])[0]
+
+
+class Distro(InstallVenv):
+
+ def check_cmd(self, cmd):
+ return bool(self.run_command(['which', cmd],
+ check_exit_code=False).strip())
+
+ def install_virtualenv(self):
+ if self.check_cmd('virtualenv'):
+ return
+
+ if self.check_cmd('easy_install'):
+ print('Installing virtualenv via easy_install...', end=' ')
+ if self.run_command(['easy_install', 'virtualenv']):
+ print('Succeeded')
+ return
+ else:
+ print('Failed')
+
+ self.die('ERROR: virtualenv not found.\n\n%s development'
+ ' requires virtualenv, please install it using your'
+ ' favorite package management tool' % self.project)
+
+
+class Fedora(Distro):
+ """This covers all Fedora-based distributions.
+
+ Includes: Fedora, RHEL, CentOS, Scientific Linux
+ """
+
+ def check_pkg(self, pkg):
+ return self.run_command_with_code(['rpm', '-q', pkg],
+ check_exit_code=False)[1] == 0
+
+ def install_virtualenv(self):
+ if self.check_cmd('virtualenv'):
+ return
+
+ if not self.check_pkg('python-virtualenv'):
+ self.die("Please install 'python-virtualenv'.")
+
+ super(Fedora, self).install_virtualenv()